Adjustable disk cultivator



Feb. 28, 1928;

J. B. HICKAM ADJUSTABLE DISK cuL'rIvA'rmr Filed July 26, ,1926

- ployed;

Fig. 5 is a perspective view of the bridge In the construction of my device I provide Patented Feb. as, 1928. I I

, UNITE!) s'r s .rorm B.HI CKAM, or oon'uivriamfmssounr.

' "ADJUSTABLE DISK CULTIVA'I'OR.

Application filed. ui 26,

My invention relates to improvementslin adjustable diskcultivators, and has for its primary objecta disk cultivator which 1s so arrangedthat the inclination of the disks .rowsfof' corn simultaneously and as the lines ,or rows of-corn even whenv planted with a machine are' never perfectly'straight, it is necessary when. cultivating to follow any 15 irregularities in the line. This has been attempted in some cultivators by causing the disks on one side of the row to cut more deeply so that the resistance due to the deeper cutting will shift the device over and follow the row. Cultivating of this'kind, however, was not satisfactory on account of the variation and depth of cultivation. H By my device the depth of cultivation is not varied at all but by my arrangement of varying the angle of inclination of the disks the device will'shift over' and follow the 7 line of planting. r v

All of the adjustment of the inclination is done by the feet of the'op-erator, leaving his hands free to manage-the horses.

In the drawingsi f .Fig. 1 is a side elevation of my device;

Fig. 2 is a top plan view of the same;- Fig. 3'is an enlarged fragmental perspec tive of a part of the lever mechanism-em- I F 1g. 4. is a perspective view fork which supports the disk axle; and

by which the forksare supported.

a frame 6 on the rear end of. which is. located a seat 7 Underneath the seat 7 is pivotally supported. a tracker wheel 8. Sup-' ported underneath the framejfi is an axle 9 on which are secured wheels 10. In front of the wheels 10 is located a'bar 11 to which ,either single or double trees can beatta ched for hitching horses thereto.

, Pivotally mounted on the axle' 9 are draft bars '12 which extend rearwardly and which are se- ,"cured to the swivels 13, which are mounted- I on-the studs of the'forks 24. 14 represents "the arch and extending inwardly from each of the arches is a bar 15 which are'pivot ally secured together. A rod 16 is secured 'ing back on the lever 20 and 4:4, which arm' is 1926. Seria1'N0.124,928.

tothebars :15 at the pivot'pointr The upper V 2 end of. the rod '16 is pivotallysecured to the end of a lever 17, this lev-erjinturnbeingv in the frame secured to a shaft 18 mounted 6. Secured to the shaft 18.is afoot lever 19 and a hand lever 20. ..The hand lever'is adapt- Y I ed to follow around a quadrant 21which is notched so" that when the hand lever :is moved forward or back, the lever 17 willbe frocked raising. and lowering the arches. The foot lever 19 is arranged to be operated at the same time that the hand leverfis' 0P erated so that, when the disks are tobe raised, the operator has both the powerof his 'armand hisfoot' to accomplish this,p'ullward" on the foot lever 19...

which have perforated :ears formed [thereon {and which receive the stud 23' formed on Each arch is providediwith brackets 22 pushing for is-also provided'with' anextendinglever'or 2 arm 26 to whichare attached connecting rods27, 28, 29 and 30. The c-onnecting rod 27 has its'opposite Lend secured-to an arm 31 which arm is pivotally attached to the lower end of a shaft 32. The shaft 32fis supported adjacentits lowerend inabea'r- .i-ng, whichbearingis'secured-to the axle 9. The upper end of the shaft 32- is supported "in a bearing 34 whichbearin'gis securedi'to a rod or bar 35 which is carried bythe frame 6.1 Secured to-the upper end of the shaft 32 is'an arm 36 which is pivotally-connected to the bar 37.-, Pivotally connected-to the i is secured to the bar 35and adjacentjits 28. Secured to the bar 35 is a bracket .42

bar 37. On the lower end of theshaft is a lever'45 to whichis pivotally connected one endof arod or lever 46; The opposite end is pivotallyattached to the footlever47 whichisswingingly'mounted on -a shaft 48 .bar 37';is an arm '38 which isrfnounted onf a shaft 39.. The shaft 39, is supported'at its upper end by'mea'ns' of a bracket 40 which a5 lo wer'end by a similar bracketwhich is secured to the axle 9. On the lowerend'of the shaft 39 is secured an arm 41.-to' which I is pivotally connected one end of the rod carriedby the frame. The lower end of the lever 47 ishooked as at'49 so, as to serve as'a foot rest. securedqtothe bar 35is a.

bracket 50 in which a shQrt-shaft 51 is? I is attached to a mountedg Onthe lower end of this shaft lever 52 which is attached to one .end of the lever 53. The opposite end of thislever foot lever '54. "The constructionof'this lever is identical with-the lever 47 and-- it also is mounted on a shaft 48.

Secured to the upper endLof thea'shaft 511s a le'ver55 which has its free end attached toithe'bar 37. 7 bearing :56 in which a shafte 1S mounted.

The lower end of this shaft is carried in-a.

' bearing similar to the hearing 56. Secured to theupper'end oftheshaft is a lever 58, its free end being attached IlIO the bar 37 and-tothe lower end ofthe shaftds'alever 59 which is attached to the lever 29. Azshaft 60 is mounted in similar hearings as :pre-

' viously described rand has,"secured at its 'can'be maintained as of the 1 angle at which on opposite reached, by exerting equal .-*upper end a lever61, the opposite :end 1 of the desired "The purpose ofthe bars a "positive pull on e ach of' the disksorirather each set of 'lisks so that'the're will-"he 11o pullingstrain on the bridge or: onrthe levers which carry "the angle of inclination i'of'ithe disks; In other words,

all of the tra'otionstram.

The operation of my device is as follows Slhe'first step is'to operate thelleveri20-so as to raise or lower the disks thereby'zgetting the'proper'depth' of cultivation. v The lever 20 is then looked in theqnadranuuand the operator "places his feet on the I levers :47 and i54e and'commencesto drive forward. In :the

event 'the'reis a deviation from thei straight line in the rows ofcorn, th'e' 'o perator pushes one foot forward giving the "d sks on one side of the corn row agreater lnc'llllibl'OIl-EO the rowand simultaneously re ducingflthewan ,216 ofinclination onith'e other side. This =movement will have a tendency to act"the same a's -aboat rudder andwoul'd holdthe disks and arch-es'to one side so that the "disks will follow any irregularities in the row. WV'hen this movement has been accomplished; the drsksareagain straightened out so that straight line and the cultivator "will move forward in a I this can bedone "Without varyingthe depth of cultivation. Heretofore it had been the praoticewhen following irregularitiesin the corn row-to cause' the disks on one side of the row to cut deeper Carried by theibar 35 .is' a' the bars 12 absorb a what I claim is: 1 s t forculthan on the other thereby drawing the dein unequal ,cultiva t ion as some parts of the field'were cultivateddeeper than others, re-

r-sultingiin irregular growth of corn, but with my device all of this is eliminated. 7 The manner .ofshifting the disks or rather altering their inclination is as follows If the lever 47is pushedforward, thelever 4i-5 will "also be pushed forward turning the shaftl and :causing the lever e l to move to Itheri'ght. This'movement in turn will be imparted-to the levers 316, 38, 55, 5V8a'nd 61,-

:wl'iich in .tu'rnwill rotate the shafts on which they aremounted. This rotation-causes the lovers Ell-and 5Y9 toimovebackward, lessening the degree of inclination to the cornrowof =27-and 29 and simultaneously withqthis ;movement the levers 4:1 :and'62 -aremoved s forward increasing the inclmation of the disks controlled by the-connecting rods disks vby merely pushing forward on this lever,

lever 47 black-ward toward .the opvice over to one side. Thishowever resulted ath'e disksvcgontrolled'bylthe connecting {I'OtlS and 80. The lever 52 will also be :moved 1 rearwardly swinging ,the foot zlever ,54 to-r ward the operator andgiving'purchase on the left foot to again straighten out the which movement'will simultaneously 5 move -the erator.

grea-tradvantage 'of my-device is that j two rows of a corn can be cultivated simultaneously especially where a corn planter has :loeen used for: the. reason I that a corn planter plants two rows of corn 'simnltaneouslyand these rows-being any deviation-sf-rom a straight .lineat the 'Inn parallel will always have same ointqso-that b steerin galon one of these rows, the other row isiautomatieally followed and I am; thereby ableyto. cultivate a corn field in hal-fthetime that :it can be done withia singleirowidisk cultivator.

iH avinug' fully; described my invention,

1. An adjustable disk cultivator tivating two rows simultaneously pomp-rising a frame, a plurality of cultivating disks ill) carried therehyaand arranged on opposite 7 sides of each row and-at an angle thereto,

means .for increasing the ;angle 5 of inclinaztion= of'the disks QIliQIlBrSliClG of each of said rows andsimul-taneously therewith decreasing the {angle-of Y inclination on the opposite zsideo'f eachofsaid rows, and apivotally mounted "tracker wheel for supporting the rear: end- ,of. said frame. r

I 2. an adjustable disk cultivator[comprislngzai frame, wheels for supportin-githe.for-

vward end] of :said -fra-1ne,-a plurality of disks wcarriedbysaid-iframe and arranged on oppodsite-sidesof two rows-and atian angle-{to said --rows, --rnea=ns operated the forward and backward movement'of the feet and one hand of theoperator-carried by said frame for controlling the depth of cultivation of .1,660,791 e' I I said disks, means carried by the frame and otally mounted tracker Wheel for supporting operated by the forward and backward the rear endof said frame whereby said end movement of the o-perators feet only Wherecan move from side to side as the inclinaby the angle of inclination of the disks on $101! of the disks is varied and irregularities one side of each row can be increased and in the rows followed by saiddisksp the angle of inclination onthe opposite side In testimony whereof I have afiixed my of said row simultaneously decrease Without vsignature. y varying the depth of cultivation, and a piv JOHN B. HIGKAM. v 

